21189454

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{1723}}^1$

素因数の和:1792

約数の個数: 32

約数和(自身を含む): 38231424

約数和(自身を除く): 17041970

約数列:

[1, 2, 11, 13, 22, 26, 43, 86, 143, 286, 473, 559, 946, 1118, 1723, 3446, 6149, 12298, 18953, 22399, 37906, 44798, 74089, 148178, 246389, 492778, 814979, 963157, 1629958, 1926314, 10594727, 21189454]

約数ペア:

[(1, 21189454), (2, 10594727), (11, 1926314), (13, 1629958), (22, 963157), (26, 814979), (43, 492778), (86, 246389), (143, 148178), (286, 74089), (473, 44798), (559, 37906), (946, 22399), (1118, 18953), (1723, 12298), (3446, 6149)]